1st Job: Kitchen floor prep

[jmc1234]

Hi all, just about to start tiling my kitchen floor with 60 x 30 procelin tiles and also lay UFH. Just wanted confirmation that I am on the right lines and any advice if I have missed anything.

Concrete floor is old but looks in good nick, previously covered with thin slate tiles and lino on top of that. Floor has a few small dips, no more than 3/4 mm. As I am putting down backer boards to insulate the floor do I need to use a SLC or can I apply extra addy when fixing boards to floor? Also intend to use SLC on top of UFH cables so i am thinking this will level everything before tiling!

Clean and Prime concrete floor - What primer would you use?
Fix backer boards - what addy and depth would you recommend?
Lay UFH and cover with SLC - What SLC would you use with UFH?
Tile - what addy would you recomend for use with UFH?
Grey tiles Grey Grout?

Any advice appreciated

[doug boardley]

okay, you seem to have got the basics right and are asking the right questions What suppliers (adhesive, slc etc) are local to you?

[whitebeam]

Why are you using backerboards to insulate and not thermal boards...

[doug boardley]

good point Mark

[Mike]

sorry to hack the thread, are insulation boards available in 6mm? i have a job coming up where the customer wants to keep the extra height to a minimum. cheers

[Bri]

Insulation boards are available in 6mm and 10mm Mike (maybe other sizes also but these 2 are the main ones I use)

[jmc1234]

Tile Giant, Tops Tiles and Screwfix. I was looking at Mapei Keraflex and Keraquick, both say suitable for UFH and screwfix seems to be doing a good deal.

[jmc1234]

Mark, just checked and they are called "tile backer/insulation board".

Paperwork says "Heatstore Tile Backer boards are high quality, reinforced polymer coated underfloor heating insulation boards suitable for mounting onto concrete/screeded and timber floors, they can be used for under - tile/carpet/vinyl floors, they are not suitable for use with our underwood systems, these boards are available in 6mm and 10mm".

Is there a diference between Insulation and Thermal boards?

[whitebeam]

I took the tile backer board as being the hardie version which more of a cement board, you should be fine with the ones you have...